Who killed Gerry Cooper? Jess and Sunny dig deeper, exposing the truth about Asif, Marty, Mel, and Juliet. But as always, the truth - both in the case and in their personal lives - leads everyone to make difficult decisions.

This award-winning cold case crime drama follows veteran London detectives who uncover the truth behind tangled, complicated murders from the past. The deeper the truth lies, the bigger the emotional toll for the suspects, the families left behind, and for the detective inspectors themselves.